Since update to 60.5.0 then I can not open Thunderbird anymore.
At a moment I was disconnected from internet I started up TB. I saw a message that it was updated (to 60.5.0). Since then I can not open TB anymore. I have restarted my PC several times (in save mode as well as in normal mode), but it does not start. I don't like to install again the software, because of all the settings I have now. I work on Windows 10. How can I solve this?
Chosen solution
Profile files are stored separately from the Thunderbird program files. The program files are static and do not change (except when you upgrade the Thunderbird application version). Because we store profile and program files separately, you can uninstall Thunderbird without losing your messages and settings, and if something goes wrong with a Thunderbird update your information will still be available. It also means that you don't have to reinstall Thunderbird in order to delete your information or troubleshoot a problem.
Having that said, it is always recommended to have a recent backup of your Thunderbird profile folder. https://support.mozilla.org/kb/profiles-where-thunderbird-stores-user-data#w_backing-up-a-profile
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Chosen Solution
Profile files are stored separately from the Thunderbird program files. The program files are static and do not change (except when you upgrade the Thunderbird application version). Because we store profile and program files separately, you can uninstall Thunderbird without losing your messages and settings, and if something goes wrong with a Thunderbird update your information will still be available. It also means that you don't have to reinstall Thunderbird in order to delete your information or troubleshoot a problem.
Having that said, it is always recommended to have a recent backup of your Thunderbird profile folder. https://support.mozilla.org/kb/profiles-where-thunderbird-stores-user-data#w_backing-up-a-profile
Christ1, thanks. I'm up and running again. :)